CN2228878Y

CN2228878Y - Bicycle frame

Info

Publication number: CN2228878Y
Application number: CN 95215699
Authority: CN
Inventors: 邱义益
Original assignee: YIXIN INDUSTRY Co Ltd
Current assignee: YIXIN INDUSTRY Co Ltd
Priority date: 1995-06-16
Filing date: 1995-06-16
Publication date: 1996-06-12
Anticipated expiration: 2005-06-16

Abstract

The utility model relates to a bicycle frame, especially an improvement aiming at the defects of fixed specifications, no shockproof effects, etc. in traditional bicycle frames. A seat pipe of the frame body has the structure that a forwards extended positioning through pipe penetrates and is combined in the rear section of an upper pipe, and the upper end of a rear fork of a bicycle is directly connected to the lower edge of the rear end of the upper pipe. Through the structural design, the utility model has the function of adjusting specifications flexibly and superior shockproof effects.

Description

Cycle frame

The utility model relates to a kind of cycle frame, refers to a kind of cycle frame of adjusting function and shock-proof effect that has especially.

In the composition structure of bicycle, much less, vehicle frame is one of most important basic building block of whole bicycle structure.General traditional body frame structure for automotive of vehicle body voluntarily is shown in Figure 5 as described later mostly, vehicle frame body 90 mainly by seat pipe 91, preceding pipe 92, on manage 93, manage 94 down, pipe fittings such as five-way pipe 95 and back vent 96 form; Wherein, seat pipe 91 is the low dip setting form is set, its lower end solid welding is on five-way pipe 95 end faces, and the upper end open place is provided with a pair of packing ear 912, the seat cushion screw of the rebasing portion of abutment wears fixing, preceding pipe 92 also is to tilt setting form is set, and pipe 94 is upper and lower distributional pattern respectively to make pipe 93 reach down, connect between present pipe 91 and the preceding pipe 92, the upper end of back vent 96 and front end then set firmly present pipe 91 and five-way pipe 95 rears respectively, for assembling, constitute cycle frame 90 as shown in Figure 5 with accessories such as trailing wheel and luggage carriers.

Though the structure design of aforementioned conventional cycle frame is continued to use for many years, yet on use is implemented, produce many shortcomings and inconvenience,, enumerate as the back now referring to Fig. 5:

(1) the vehicle frame specification is fixed, and can't the actual use of close fit need.All pipe fittings of standard bicycle vehicle frame body 90 are affixed form, make the specification form of whole vehicle frame be completely fixed, and can't carry out any adjustment, lack extensive applicability; For consumers; often must expensive thought go for the bicycle of seeking the most suitable own stature build; and usually can find after customer's purchase that specification does not still very cooperate; in addition for the cyclery dealer; in order to cooperate customer's needs; the cycle frame that must development and Design goes out various different specification sizes causes the bicycle cost to increase.

(2) vehicle frame itself is not had shock-absorbing usefulness.Preceding pipe 91 bottoms of standard bicycle vehicle frame body 90 directly are installed on five-way pipe 95 end faces, make the seat cushion that is assembled in preceding pipe 91 tops can not get shock-proof effect fully, can't satisfy the valued day by day traveling comfort requirement that drives.

Therefore, main purpose of the present utility model is to provide the cycle frame that a kind of specification can be adjusted flexibly and shock-proof effect is good.。

The cycle frame that the utility model provides, its vehicle frame body mainly comprises preceding pipe, last pipe, following pipe, the five-way pipe, pipe fittings such as back vent and seat pipe, wherein, last pipe reaches down, and the front end of pipe is connected on the trailing edge of preceding pipe with the level and the state of tiltedly stretching respectively, and make down pipe after terminate on the five-way pipe leading edge, and the front end of back vent is fixed on the trailing edge of five-way pipe, the rear end that it is characterized in that pipe is the opening form, and the upper end that makes back vent directly is connected on pipe rear end lower edge, the seat pipe has specification length, and in front tube face vertical junction one location poling, the caliber of this location poling just cooperates with the internal diameter of last pipe, it can be penetrated and relative packing location by the open end of last pipe, the seat pipe is set firmly the rear that is positioned at pipe.

Aforementioned cycle frame is characterized in that pipe is to penetrate lining by open end to establish caliber and be same as the straight along the shape sleeve pipe of tube opening end internal diameter, and the location poling of a pipe is penetrated by the sleeve pipe rear end and is positioned at and manages the rear.

Aforementioned cycle frame, its feature are that also the side face appropriate location ring of sleeve pipe establishes the edge that supports of class's form, keep supplying the tube opening end and abut against welded joint.

Aforementioned cycle frame, its feature be also that sleeve pipe is offered at the rear open end upper limb and cut seam together open, and cut seam both sides one open at this and be convexly equipped with the packing ear with lockhole relatively, the screw lock packing that wears for the location poling.

Aforementioned cycle frame, its feature be also that pipe is offered at the open end upper limb and cut seam together open, and cut seam both sides one open at this and be convexly equipped with the packing ear with lockhole relatively, the screw lock packing that wears for the location poling.

The utility model is owing to having the said structure design, so have advantage as described below in the use:

(1) the vehicle frame specification can be adjusted flexibly according to actual needs, meets various build riders' use needs; As Fig. 3, shown in 4, the utility model seat pipe 17 wears the rear that is combined in pipe 12 on the bicycle with the location poling 18 that protracts, therefore, as long as utilize variation location poling 18 to stretch through at last pipe 12, the length of sleeve pipe 16, just can adjust the distance that changes seat pipe 17 and Handlebar of bicycle flexibly according to rider's needs, cooperate seat cushion 19 to make the location height change of the present pipe 17 of combination with seat cushion screw 192, just can adjust the vehicle frame specification form of the most suitable rider's stature build, have extensively and applicability flexibly, and significantly reduce bicycle industry cost, have industrial utilization.

(2) the vehicle frame body has good shock-proof effect, Fig. 3 as described later, shown in 4, the utility model is for the seat pipe 17 that combines with seat cushion 19, be to manage 12 rears in conjunction with being positioned at the location poling 18 that protracts, and be positioned at the preceding pipe 11 of vehicle frame body 10, last pipe 12, under manage 13 and back vent 15 between, form a kind of balance framework of similar parallelogram, and seat pipe 17 lower ends are the free end form, therefore, before the bicycle, the stressed seat cushion 19 that can not directly act on rider's seat of trailing wheel and five-way pipe 14, cooperate the shock-absorbing effect of the change in flexibility of each pipe fitting trace, make vehicle frame body 10 have good buffering and shock-proof effect, satisfy the requirement that drives traveling comfort.

Further specify specific structural features of the present utility model and purpose below in conjunction with accompanying drawing.

To Brief Description Of Drawings:

Fig. 1 is the block diagram of the utility model embodiment, in order to relativeness and the combination form that this creation member is described,

Fig. 2 is the three-dimensional exploded view of the utility model embodiment, forms the structural form and the syntagmatic of member in order to this creation to be described,

Fig. 3 is the view of the assemblage zone local section of the utility model embodiment, in order to combination form of the present utility model being described and adjusting manner of execution,

Fig. 4 is the scheme drawing of the enforcement state of the utility model embodiment, uses form in order to enforcement of the present utility model to be described.

Fig. 5 is the planar appearance figure of standard bicycle vehicle frame, in order to the structural form of explanation standard bicycle vehicle frame.

As Fig. 1,2, shown in 3, the utility model is the improvement design about cycle frame, pipe 11 before whole vehicle frame body 10 comprises, last pipe 12, under manage 13, five-way pipe 14, back vent 15, sleeve pipe 16, pipe fittings such as seat pipe 17 and location poling 18, utilize the winding of aforementioned each pipe fitting, promptly constitute the framework of whole vehicle frame body 10, wherein, the preceding pipe 11 of vehicle frame body 10 is the upright form of establishing of low dip, and the front end of pipe 13 is fixed in preceding pipe 11 trailing edges respectively to make pipe 12 reach down, should go up that pipe 12 is horizontal configuration and be the open end 122 of opening form in the rear end, following pipe 13 is then tiltedly established form for preceding going up under the back, and termination is located at five-way pipe 14 leading edges thereafter; Again, 154 of the upper end 152 of back vent 15 and front ends are fixed in the rear open end lower edge of pipe 12 and the trailing edge of five-way pipe 14 respectively, and group constitutes the basic boom of vehicle frame body 10;

Seat pipe 17 is the suitable hollow tubes of length, its top rear side is offered and is vertically cut seam 172 open, and cutting the packing ear 174 that seam 172 both sides one are convexly equipped with the tool lockhole relatively open, so, please cooperate referring to shown in Figure 4, manage 17 tops when penetrating seat pipe 17 with the seat cushion screw 192 of bottom by seat when seat cushion 19, can utilize the wearing lock of these two packings ear, 174 barrel bolt and give the packing location; Again, location poling 18 is bodys of pipe 12 internal diameters on the caliber correspondence, and its rear end one connects the front tube face that is located at seat pipe 17, and wears a perforation 182 in front tube face appropriate location, and has bayonet lock 184 to utilize the contact of spring 186, and its free end is passed by perforation 182;

Sleeve pipe 16 is that caliber is same as the straight along the shape body of pipe 12 open ends 122 internal diameters, support edge 162 in what its side face appropriate location ring was established class's drop form, so, the open end 122 of sleeve pipe 16 front ends by last pipe 12 penetrated wherein, utilize this to support fastening of edge 162 and open end 12, the mode that cooperates solder bond firmly wears sleeve pipe 16 and is positioned at pipe 12 back fragment position; Again, wear the lock packing corresponding to aforementioned location poling 18, sleeve pipe 16 is offered at the rear open end upper limb and is cut seam 164 together open, and this cut open seam 164 both sides also one be convexly equipped with the packing ear 166 of tool lockhole relatively, so, the bayonet lock 184 of location poling 18 front ends is pressed into, and location poling 18 is aligned in the threading 16, cooperate the folder of packing ear 1 66 to compel sealed, just can firmly securely seat pipe 17 be set firmly and be positioned pipe 12 rears, cooperate the assembling of other bicycle accessories, just can constitute the cycle frame shown in Fig. 1,4.

In addition, shown in Fig. 2,3, now be illustrated: at first at aforementioned design of the present utility model, in location poling 18 front ends that seat pipe 17 protracts, be provided with the bayonet lock 184 of outstanding location poling 18 side faces, utilize fastening of this bayonet lock 184 and sleeve pipe 16 front-end edges, make location poling 18 wear when being combined on the sleeve pipe 16, can effectively avoid locating poling 18 arbitrarily by deviating from the sleeve pipe 16, guarantee rider's safety; Secondly, with sleeve pipe 16 rear ends cut seam 164 open and packing ear 166 is provided in a side of seat pipe 16 upper limbs, not only can avoid sleeve pipe 16 to afford too big downward application force (rider's body weight) and damage, and can utilize this downward stressed, reach the effect that sleeve pipe 16 abundant packing bundles close; At last, when pipe on the bicycle 12 adopts the design of straight suitable shape body, can directly sleeve pipe 16 and last pipe 15 be made as one, just directly offer and cut seam open and be convexly equipped with the packing ear at the rear end upper limb of last pipe 12, invite guests to be seated and manage the 17 location polings 18 that protract, directly wear to be positioned at and manage in 12, have the effect that aforementioned the utility model embodiment has equally.

Claims

1, a kind of cycle frame, its vehicle frame body mainly comprises pipe fittings such as preceding pipe, last pipe, following pipe, five-way pipe, back vent and seat pipe, wherein, the front end of pipe reached with level respectively and tiltedly stretches the trailing edge that form is connected on preceding pipe under last pipe reached, and make down pipe after terminate at five-way pipe leading edge, and the front end of back vent is fixed in the trailing edge of five-way pipe, it is characterized in that:

The rear end of last pipe is the opening form, and the upper end that makes back vent directly is connected on pipe rear end lower edge, the seat pipe has specification length, and establish a location poling in front tube face vertical junction, the caliber of this location poling just cooperates with the internal diameter of last pipe, it can be penetrated and relative packing location by the open end of last pipe, the seat pipe is set firmly the rear that is positioned at pipe.

2, cycle frame according to claim 1 is characterized in that: the described pipe of going up is to penetrate lining by open end to establish caliber and be same as the straight along the shape sleeve pipe of tube opening end internal diameter, and the location poling of a pipe is penetrated by the sleeve pipe rear end and is positioned at and manages the rear.

3, cycle frame according to claim 2 is characterized in that: the side face appropriate location ring of described sleeve pipe is established the edge that supports of ladder form, keeps supplying the tube opening end and abuts against seam.

4, according to claim 2 or 3 described cycle frames, it is characterized in that: offer in described sleeve pipe rear open end upper limb and cut seam together open, and cut seam both sides one open at this and be convexly equipped with packing ear relatively, the screw lock packing that wears for the location poling with lockhole.

5, cycle frame according to claim 1 is characterized in that: offer and cut seam together open in the described tube opening end upper limb of going up, and cut seam both sides one open at this and be convexly equipped with the packing ear with lockhole relatively, the screw lock packing that wears for the location poling.